Question

x2+x+c=0 if x = -2 and c represents a unknown constant, what is the value of c

Answer 1

Answer:

x²+x+c = 0

if x= -2,

(-2)² + (-2) + c = 0

4 - 2 + c = 0

2 + c = 0

c = -2 Ans

Hope This helps ☺️